Microfabricated Cochlear Electrode Array

Award Information
Agency: Department of Health and Human Services
Branch: National Institutes of Health
Contract: 2R44DC012741-02
Agency Tracking Number: R44DC012741
Amount: $1,425,503.00
Phase: Phase II
Program: SBIR
Awards Year: 2016
Solicitation Year: 2015
Solicitation Topic Code: NIDCD
Solicitation Number: PA15-269
Small Business Information
1201 ASTOR AVE APT 5124, Ann Arbor, MI, 48104-6104
DUNS: 969965800
HUBZone Owned: N
Woman Owned: Y
Socially and Economically Disadvantaged: N
Principal Investigator
 ANGELIQUE JOHNSON
 (410) 375-6073
 acjohn01@louisville.edu
Business Contact
 ANGELIQUE JOHNSON
Phone: (401) 375-6073
Email: angelique@memstim.com
Research Institution
N/A
Abstract
Project Summary Abstract Current cochlear implants while beneficial in their use are limited in their capabilities by hand assembly of the electrode arrays This tedious manufacturing method is very costly extremely labor intensive and inadequate in implementing new technologies for improving speech recognition and music appreciation A superior alternative to hand assembly is microfabrication which is a fully automated low cost and high yield manufacturing process that is capable of implementing a variety of innovations including smaller array size for residual hearing preservation drug delivery channels for inner ear health and cell regeneration and strain gauges for improved performance during surgical insertion Microfabrication is a very promising alternative to hand assembly but has yet to meet the following requirements for commercialization substrates must be composed of proven long term implantable materials USP class VI electrode arrays must be compatible with standard surgical insertion techniques substrate and electrode sites must be able to withstand long term electrical stimulation in the body the array must be long enough to extend from the tip of the cochlea to the location behind the ear where the electronics are implanted under the skin and the array must have electrical wiring that is compatible with the electrical feedthrough pins of the implantable cochlear stimulator ICS During Phase I MEMStim showed that it is feasible to produce a microfabricated cochlear electrode array out of medical grade materials that can meet the commercial requirements The goal of Phase II will be to produce just such an array as a minimum viable product MVP for cochlear implant manufacturers The MVP will address requirements and further improve upon the Phase I results of requirement In order to accomplish the Phase II goal the following Specific Aims will be accomplished Aim produce a full length microfabricated cochlear array with an integrated cable that can be bonded to an implantable cochlear stimulator and complies with electrical mechanical durability biocompatibility and FDA safety requirements specified in communications with cochlear implant manufacturers and Aim produce a connector scheme for integrating a microfabricated cochlear electrode to the feedthroughs of an implantable cochlear stimulator The expected outcome is an array that can be integrated by customers into their cochlear implant systems and pass all handling use safety tests that cochlear implant manufacturers would need to seek approval from the FDA Project Narrative Cochlear implants allow the profoundly deaf to achieve reasonable word recognition in quiet environments but technological innovations to achieve fuller appreciation of music and speech are severely limited by the shortcomings of current hand assembly manufacturing methods for cochlear electrode arrays MEMStim LLC will develop a superior alternative to hand assembly microfabrication This novel method is a fully automated low cost and high yield manufacturing process capable of implementing technological innovations that will provide benefits such as small electrode array size for residual hearing prevention drug delivery channels for inner ear health and cell regeneration and strain gauges for improved surgical safety outcomes

* Information listed above is at the time of submission. *

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